I've heard that too, but I'm baffled. If they were on a motorcycle, where would they have kept their belongings while on the road? They were clean, they probably would have had to have been carrying extra clothes, toiletries, laundry detergent, etc. James would also have had to have his driver's/motorcycle license, I assume. Granted, I've never been on a motorcycle, but it seems like it would be impossible to fit two people's belongings on it and ride around? The only thing I could think of is that one of them was carrying a very small bag with stuff for laundry and they would just wash and dry the clothes they were wearing when they could (maybe hand-washing?), and relied on using the free toiletries at motels to clean themselves.
I don’t know about other states, but Florida didn’t have a special motorcycle license back then. As for clothes, etc, you can fit a few changes of clothes in a duffle bag strapped to the bike. There are coin laundries in most towns. The bike might have had a storage unit on it. If the bike was a fancy new one, it might have been what the murderer was after